A Single Longitudinal-Mode Tunable Fiber Ring Laser Based on Stimulated Rayleigh Scattering in a Nonuniform Optical Fiber

被引：68
作者：
Zhu, Tao [1 ,2 ]
Bao, Xiaoyi [1 ]
Chen, Liang [1 ]
机构：
[1] Univ Ottawa, Dept Phys, Ottawa, ON 61N KN5, Canada
[2] Chongqing Univ, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2011年 / 29卷 / 12期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Fiber ring; optical communications; optical fiber lasers; single longitudinal mode (SLM); OPERATION;
D O I：
10.1109/JLT.2011.2142292
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have realized a novel tunable narrow linewidth fiber laser with single-longitudinal-mode operation based on the homogenous gain broadening effect of Er-doped fiber and the stimulated Rayleigh scattering (STRS) in a nonuniform optical fiber in a ring laser configuration. A 3 dB linewidth of less than 2.0 kHz is achieved with 70 dB extinction. The minimum tunable laser bandwidth is determined by the balance of the bandwidth of tunable bandpass filter (in GHz), relaxation time and gain of the Er-doped fiber, and cavity loss. The tuning range is determined by the range of tuning filter within Er-doped fiber gain spectrum. This technique is applicable to any fiber with much higher stimulated Brillouin scattering threshold than that of STRS.
引用
收藏
页码：1802 / 1807
页数：6
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